hippocrepian

Century Dictionary and Cyclopedia

1. Like or likened to a horseshoe in shape; hippocrepiform: specifically applied to certain ectoproctous Polyzoa which usually have the lophophore prolonged into two lobes so as to be horseshoe-shaped, as well as to such a lophophore itself.
2. n. A polyzoan having these characteristics. See Phylactolæmata.

Wiktionary

1. n. One of an order of freshwater bryozoa, in which the tentacles are on a lophophore, shaped like a horseshoe.

GNU Webster's 1913

1. n. (Zoöl.) One of an order of fresh-water Bryozoa, in which the tentacles are on a lophophore, shaped like a horseshoe. See phylactolæma.